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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.

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Aspirin may benefit 11 different cancers, including those of the colon, pancreas, lungs, prostate, breasts, and leukemia.

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The horizontal fraction bar was introduced by the Arabs.

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People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

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One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.

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Video: Hormonal regulation of pregnancy - weeks 2 through 38

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